Irish lichens
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Order: Ostropales Family: Incertae sedis
Species: Thelopsis rubella Photos: Glengarriff woods, Co. Cork, SW Ireland. Thin, waxy thallus, grey, grey-green or brownish. Reddish-brown perithecia become orange and +/- gelatinous when wet. Asci 100-150 spored, spores mainly 3-septate, 12-16 x 4-8 µm, ends rounded. Short-lived, most abundant in winter and early spring in shallow cracks and rain tracks on the trunks of mature broad-leaved trees. Often found in association with the liverwort Metzgeria furcata. An 'Old forest' indicator species. Similar: Pachyphiale carneola |
Thelopsis rubella April 2010